Nikon N90 instruction manual TTL auto flash, Wide-Area AF

TTL auto flash

The camera'slight sensor measures flash illumination, as reflected by the subject on the film and shuts off the flash when measurement indicates correct exposure. Because the sensor that controls the flash receives light through the lens, TIL auto flash can be used for bounce flash photography, fill-flash, multiple flash photography, etc. An additional advantage of TIL auto flash is that you can use a wide range of aperture settings, while ensuring correct exposure.

Wide-Area AF

Cross-shaped Wide-Area Sensor (7mm horizontal, 3mm vertical) with no dead zone results in sharp focus for most subjects, including those without vertical lines.

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